OHA Drinking Water Services
OR41
PWS ID: 00922 ---- VERNONIA, CITY OF

See also: Coliform Schedules  ::  LT2 Schedules

Chemical Sampling Schedule Status
Facility
ID
Analyte or Group   Sampling
Interval
Monitoring Period Days
Until
End
Samples
Required
Samples
Received
Last
Sample
Date
Start End
CH-A  COMMON HEADER FOR WTP-ATOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 13 1 incomplete 07/09/2025
DIST-A  Distribution System ASBESTOS, DIST  9 Years 01/01/2020 - 12/31/2028 1,019 1 incomplete11/05/2019
DIST-A  Distribution System DBP2 HAA5 ONLY notesYearly 01/01/2026 - 12/31/2026 288 1 incomplete06/04/2025
  Seasonal sampling period:   06/01   thru   06/30
DIST-A  Distribution System DBP2 TTHM ONLY notesYearly 01/01/2026 - 12/31/2026 288 1 incomplete09/18/2025
  Seasonal sampling period:   09/01   thru   09/30
DIST-A  Distribution System LEAD & COPPER notes3 Years01/01/2028 - 12/31/2028   10 09/18/2025
  Seasonal sampling period:   06/01   thru   09/30
EP-A  EP FOR ROCK CREEK ARSENIC notes9 Years 01/01/2020 - 12/31/2028 1,019 1 incomplete11/05/2019
EP-A  EP FOR ROCK CREEK IOC notes9 Years 01/01/2020 - 12/31/2028 1,019 1 incomplete11/05/2019
EP-A  EP FOR ROCK CREEK NITRATE  Yearly 01/01/2026 - 12/31/2026 288 1 incomplete04/07/2025
EP-A  EP FOR ROCK CREEK NITRITE notes9 Years 01/01/2020 - 12/31/2028 1,019 1 incomplete11/05/2019
EP-A  EP FOR ROCK CREEK PFAS notesQuarterly 01/01/2026 - 03/31/2026 13 1 incomplete
  Initial monitoring - 4 quarters only
EP-A  EP FOR ROCK CREEK RAD - GROSS ALPHA  9 Years 01/01/2026 - 12/31/2034 3,210 1 incomplete04/07/2025
EP-A  EP FOR ROCK CREEK RAD - RADIUM 226/228 9 Years 01/01/2026 - 12/31/2034 3,210 1 incomplete04/07/2025
EP-A  EP FOR ROCK CREEK RAD - URANIUM  9 Years 01/01/2026 - 12/31/2034 3,210 1 incomplete04/07/2025
EP-A  EP FOR ROCK CREEK SOC  3 Years 01/01/2026 - 12/31/2028 1,019 1 incomplete06/04/2025
EP-A  EP FOR ROCK CREEK VOLATILE ORGANICS  Yearly 01/01/2026 - 12/31/2026 288 1 incomplete04/07/2025
WTP-A  TP FOR ROCK CREEKTOTAL ORGANIC CARBON Quarterly01/01/2026 - 03/31/2026 13 1 incomplete 07/09/2025

7  secs
Show Expired